Perhaps you should try some spelling variations:
technologies volume » technology volume, technologies policies
volume evaluation » value evaluation, course evaluation, use evaluation
3.2 communication » 3 communication, 2.3 communication, de communication
evaluation wages » evaluation age, evaluation stage, evaluation usage
developpement l » developpement il, developpement la, developpement de
wages case » ages case, wages close, cases case
l afrique » en afrique
case 3.2 » case 4.2, case 3.1, case 5.2

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technologies volume evaluation wages case 3.2 communication costs _ developpement l afrique.*.